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A substance which turns easily to a vapor at normal temperatures and pressures.

A substance which turns easily to a vapor at normal temperatures and pressures. Though the term is usually applied to liquids, some solids, such as iodine, can also be volatile and will turn directly to vapor without passing through a liquid phase.

Though the term is usually applied to liquids, some solids, such as iodine, can also be volatile and will turn directly to vapor without passing through a liquid phase.

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